POLS HELP ME NOWWWW I DONT UNDERSTAND IT

Mathematics

1 answer:

Leni [432]3 years ago

5 0

Answer:

Step-by-step explanation:

using the equation 'y = 12x', if you plug in zero for 'x' you get zero for 'y'; the only graph that has the point (0, 0) is (b)

also, the x-axis represents time so, as time increases, so does the number of calories burned (which is measured on the y-axis) -- not staying flat or decreasing

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What is the value of the function when x = 4? y = 3x + 7

adelina 88 [10]

2x - 3y = 7 and -3x + y = 7..multiply Equation 2 by THREE and add to Equation 1
-9x + 3y = 21...........................watch the y's disappear
-7x........ = 28
x = -4
substitute -4 instead of x in either of the ORIGINAL equations

2x - 3y = 7
2(-4) - 3y = 7
-8 -3y = 7..........add 8 to both sides
-3y = 15
y = -5

im not sure

8 0

3 years ago

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Use the equation Y= 11 - 5X to find y when x=7.

kap26 [50]

Plug in x = 7. Then use the order of operations (PEMDAS) to simplify
y = 11 - 5*x
y = 11 - 5*7 .... x has been replaced with 7 (since x = 7 is given)
y = 11 - 35
y = -24

7 0

3 years ago

Read 2 more answers

1 point

swat32

Answer:

$\log_{10}(147) = 2.1673$